19877580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{110431}}^1$

素因数の和:110446

約数の個数: 36

約数和(自身を含む): 60295872

約数和(自身を除く): 40418292

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 110431, 220862, 331293, 441724, 552155, 662586, 993879, 1104310, 1325172, 1656465, 1987758, 2208620, 3312930, 3975516, 4969395, 6625860, 9938790, 19877580]

約数ペア:

[(1, 19877580), (2, 9938790), (3, 6625860), (4, 4969395), (5, 3975516), (6, 3312930), (9, 2208620), (10, 1987758), (12, 1656465), (15, 1325172), (18, 1104310), (20, 993879), (30, 662586), (36, 552155), (45, 441724), (60, 331293), (90, 220862), (180, 110431)]